annotate mod_readonly/mod_readonly.lua @ 4764:a754f7e380b2

mod_dnsupdate: Rewrite port config vs DNS comparison code I'm not sure if it was correct, which means it was hard to understand and thus needed to be simplified. Hope this accomplishes that.
author Kim Alvefur <zash@zash.se>
date Mon, 08 Nov 2021 23:03:14 +0100
parents 7776c9dc5f37
children
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750
8133dd5f266a mod_readonly: Allow preventing direct modification of certain user data via XMPP
Matthew Wild <mwild1@gmail.com>
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1 local st = require "util.stanza";
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2
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3 local stores = module:get_option("readonly_stores", {
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4 vcard = { "vcard-temp", "vCard" };
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5 });
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6
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7 local namespaces = {};
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8 for name, namespace in pairs(stores) do
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9 namespaces[table.concat(namespace, ":")] = name;
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10 end
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11
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7776c9dc5f37 mod_readonly: Simplify iq handling by hooking on iq-set/ instead of iq/.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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12 local function prevent_write(event)
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13 local stanza = event.stanza;
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14 local xmlns_and_tag = stanza.tags[1].attr.xmlns..":"..stanza.tags[1].name;
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15 local store_name = namespaces[xmlns_and_tag];
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16 if store_name then
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17 module:log("warn", "Preventing modification of %s store by %s", store_name, stanza.attr.from);
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18 event.origin.send(st.error_reply(stanza, "cancel", "not-allowed", store_name.." data is read-only"));
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19 return true; -- Block stanza
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20 end
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21 end
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23 for namespace in pairs(namespaces) do
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24 module:hook("iq-set/bare/"..namespace, prevent_write, 200);
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25 end